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"Return value must be of type App\Http\Controllers\Response, Inertia\Response returned"を解決する方法

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Table Of Contents

  1. Full Error Message
  2. Solution
  3. Code Before Fixing
  4. Code After Fixing
  5. Explanation

How to resolve the Laravel error `Return value must be of type App\Http\Controllers\Response, Inertia\Response returned`

PR

Full Error Message

App\Http\Controllers\PostController::index(): Return value must be of type App\Http\Controllers\Response, Inertia\Response returned

Solution

Add the following line:

use Inertia\Response;

Code Before Fixing

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Inertia\Inertia;

class PostController extends Controller
{
    public function index(): Response
    {
        return Inertia::render('Post/Index');
    }
}

Code After Fixing

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Inertia\Inertia;
use Inertia\Response;

class PostController extends Controller
{
    public function index(): Response
    {
        return Inertia::render('Post/Index');
    }
}

Explanation

Instead of using the Response class from

use Illuminate\Http\Response;

use Inertia\Response to resolve the issue.

I hope this helps someone!

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